/* SPDX-License-Identifier: MIT */ /* * Copyright © 2021 Intel Corporation */ #ifndef __INTEL_BACKLIGHT_H__ #define __INTEL_BACKLIGHT_H__ #include <linux/types.h> struct drm_connector_state; struct intel_atomic_state; struct intel_connector; struct intel_crtc_state; struct intel_encoder; struct intel_panel; enum pipe; void intel_backlight_init_funcs(struct intel_panel *panel); int intel_backlight_setup(struct intel_connector *connector, enum pipe pipe); void intel_backlight_destroy(struct intel_panel *panel); void intel_backlight_enable(const struct intel_crtc_state *crtc_state, const struct drm_connector_state *conn_state); void intel_backlight_update(struct intel_atomic_state *state, struct intel_encoder *encoder, const struct intel_crtc_state *crtc_state, const struct drm_connector_state *conn_state); void intel_backlight_disable(const struct drm_connector_state *old_conn_state); void intel_backlight_set_acpi(const struct drm_connector_state *conn_state, u32 level, u32 max); void intel_backlight_set_pwm_level(const struct drm_connector_state *conn_state, u32 level); u32 intel_backlight_invert_pwm_level(struct intel_connector *connector, u32 level); u32 intel_backlight_level_to_pwm(struct intel_connector *connector, u32 level); u32 intel_backlight_level_from_pwm(struct intel_connector *connector, u32 val); #if IS_ENABLED(CONFIG_BACKLIGHT_CLASS_DEVICE) int intel_backlight_device_register(struct intel_connector *connector); void intel_backlight_device_unregister(struct intel_connector *connector); #else /* CONFIG_BACKLIGHT_CLASS_DEVICE */ static inline int intel_backlight_device_register(struct intel_connector *connector) { return 0; } static inline void intel_backlight_device_unregister(struct intel_connector *connector) { } #endif /* CONFIG_BACKLIGHT_CLASS_DEVICE */ #endif /* __INTEL_BACKLIGHT_H__ */